## 4 Release Notes and Installation Guide for Windows

This chapter assumes that the environment variable PATH includes `%SP_PATH%\bin`, where SP_PATH points to the SICStus installation directory (typically `C:\Program Files\SICStus Prolog 4.0.0`. Here, `%SP_PATH%` is just a place-holder; you usually do not need to set the environment variable SP_PATH, but see CPL Notes. For example:

```     C:\> set PATH=C:\Program Files\SICStus Prolog 4.0.0\bin;%PATH%
```

To use splfr and spld, you must also include Microsoft Visual Studio (or at least its C compiler and linker). The easiest way is to run `vsvars32.bat` from the Visual Studio distribution.

To use the respective library modules, you must also include the paths to Tcl/Tk (see Tcl/Tk Notes) and Berkeley DB (see Berkeley DB Notes) onto the `PATH` environment variable if the installer for Berkeley DB and Tcl/Tk have not done so already.

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